178978860

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{887}}^1$

素因数の和:980

約数の個数: 144

約数和(自身を含む): 581817600

約数和(自身を除く): 402838740

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 59, 60, 76, 90, 95, 114, 118, 171, 177, 180, 190, 228, 236, 285, 295, 342, 354, 380, 531, 570, 590, 684, 708, 855, 885, 887, 1062, 1121, 1140, 1180, 1710, 1770, 1774, 2124, 2242, 2655, 2661, 3363, 3420, 3540, 3548, 4435, 4484, 5310, 5322, 5605, 6726, 7983, 8870, 10089, 10620, 10644, 11210, 13305, 13452, 15966, 16815, 16853, 17740, 20178, 22420, 26610, 31932, 33630, 33706, 39915, 40356, 50445, 50559, 52333, 53220, 67260, 67412, 79830, 84265, 100890, 101118, 104666, 151677, 156999, 159660, 168530, 201780, 202236, 209332, 252795, 261665, 303354, 313998, 337060, 470997, 505590, 523330, 606708, 627996, 758385, 784995, 941994, 994327, 1011180, 1046660, 1516770, 1569990, 1883988, 1988654, 2354985, 2982981, 3033540, 3139980, 3977308, 4709970, 4971635, 5965962, 8948943, 9419940, 9943270, 11931924, 14914905, 17897886, 19886540, 29829810, 35795772, 44744715, 59659620, 89489430, 178978860]

約数ペア:

[(1, 178978860), (2, 89489430), (3, 59659620), (4, 44744715), (5, 35795772), (6, 29829810), (9, 19886540), (10, 17897886), (12, 14914905), (15, 11931924), (18, 9943270), (19, 9419940), (20, 8948943), (30, 5965962), (36, 4971635), (38, 4709970), (45, 3977308), (57, 3139980), (59, 3033540), (60, 2982981), (76, 2354985), (90, 1988654), (95, 1883988), (114, 1569990), (118, 1516770), (171, 1046660), (177, 1011180), (180, 994327), (190, 941994), (228, 784995), (236, 758385), (285, 627996), (295, 606708), (342, 523330), (354, 505590), (380, 470997), (531, 337060), (570, 313998), (590, 303354), (684, 261665), (708, 252795), (855, 209332), (885, 202236), (887, 201780), (1062, 168530), (1121, 159660), (1140, 156999), (1180, 151677), (1710, 104666), (1770, 101118), (1774, 100890), (2124, 84265), (2242, 79830), (2655, 67412), (2661, 67260), (3363, 53220), (3420, 52333), (3540, 50559), (3548, 50445), (4435, 40356), (4484, 39915), (5310, 33706), (5322, 33630), (5605, 31932), (6726, 26610), (7983, 22420), (8870, 20178), (10089, 17740), (10620, 16853), (10644, 16815), (11210, 15966), (13305, 13452)]